Press-stud



B. STEINER.

PRESS STUD. APPLICATION HLED 1uLY28, 1920.

Patented Apr. 26, 1921.

BERNHARD STEINER, OF NEW YORK, N. Y.

PRESS-STUD.

Specification of Letters Patent. Patented Apr. 26, 1921.

Application filed July 28, 1920. Serial No. 399,536.

To all whom it may concern:

Be it known that I, BERNHARD STEINER, citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Press- Studs; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to separable fasteners of the head and socket type, and more particularly to the type some times known as press studs comprising two members adapted to be pressed together in an axial direction.

The invention relates specifically to a fastener of the described type, the male and fe male members of which are adapted to be secured to a fabric by thread, or to be sewed in position.

The object of my invention is to provide a press stud adapted to be sewed to a fabric, and of such construction that the threads by which the members are attached are protected from friction between the two parts of the fastener, or the threads by which the two parts are secured to the fabric.

The invention comprises the structure more specifically disclosed in the following description, illustrated in the accompanying drawings and defined in the appended claim.

In the drawings herewith:

Figure 1 is a top plan view of the stud member looking at the side which is exposed when said member is sewed to a fabl'lCZ Fig. 2 is a plan view of the socket member looking at the side which comes in contact with the fabric to which it is attached;

Fig. 3 is a cross section through both members united.

Similar reference characters designate corresponding parts throughout the several views.

The male or stud member designated M is preferably drawn or stamped from sheet material and has a central stud'l rising from a circular flange or base 2, the outer edge of which is spun or otherwise curled over at 3, so as to provide a ridge or rim oircumferentially rising from that side of the flange 2 from which the stud 1 rises,

which I term the outer side of said flange. i

Equally spaced apart in the flange 2, between the stud l and the rim 3, are elongated holes t through which the threads are passed by a needle into the fabric for securing the stud member M to the fabric. In sewing a fastener member to a piece of cloth or other fabric, the thread will be passed through one opening 4, through the fabric and up through another of the openings at, as will be well understood, and as is illustrated in Fig. 1.

The socket member or female member F is of the usual type and it, also, is preferably drawn, stamped Or spun from sheet material. It comprises a central socket 10 depressed in flange 12, from the outer face thereof, which is the face exposed when the said member is sewed to a fabric and the outer edge of which is spun or curled into a ridge 13 on that side of the base which is opposite that in which the depression of the socket enters, or on the inner face which lies against the fabric. A spring 11 operates through opposite slits in the side walls of the member 10, which forms the socket, and those parts of the spring that pass through said slits into the socket are adapted to engage the stud 1 and hold it frictionally or elastically within said socket when the two members are united. The spring 11 is mounted in the usual way known in the art. In the said member F are thread openings 14:, similar to the openings 4 in the member M, and through these openings threads may be passed in sewing the member F to a fabric in the same manner as in sewing the member M to a fabric.

The relation of the members M and F, when in engagement, is such that the rim 3 on the member M prevents the member F from contacting with the threads 5 on either of said members. There can therefore be no chafing or cutting of said threads by the contact of the members. All parts of the corresponding fasteners are so adjusted that the two flange portions 2 and 12 contact only on the rim 3, leaving a space between the members M and F where the threads which attach said members to the fabric are so 10- oated that said threads cannot be chafed or cut.

Although I have shown and described the device as made from sheet material, as is customary in this art, yet it is well known that such members may be molded, machined or otherwise formed from solid materials, and it is not essential to my invention that the rim 3 shall be drawn or spun, the essential characteristic being the presence of a rim or equivalent stop abutment offset von one of the members of the fastener toward the other member in order that the attaching threads may not be'chated or out by friction and wear between the members of the fastener or between the threads securing the members. I use the phrases rising from or elevated above a surface in the sense in which they are used ordinarily in speaking rather than the horizon.

Having described my invention in such manner as to enable those skilled in the art of relief and intaglio surfaces, with reference to the plane of to make and use the same What I claim and desire to secure by Letters Patent is:

A separable fastener, consisting of a pair of members, each member having a peripheral flange, and one member having a central socket and the other having a central stud for entr in said socket one of said flan es a v 1 2: having a stop asutn ent elevated above the face of the flange adapted to engage the lace I: (-1 1. 01. the other nange an hereby limit the extent of insertion oi": said stud in said socket,

BERNHARD STEINER. 

